Can someone help me find why I'm getting an unexpected , expecting ;? [closed]-Collection of common programming errors

I’m not sure why I’m getting this error, as I can’t see anything wrong with my eyes.

In NetBeans on Line 9 I’m getting “Expected , but found ;”

jQuery(document).ready(function($){
    $(".scroll").click(function(event){event.preventDefault();
        $('html,body').animate({scrollTop:$(this.hash).offset().top},500);
    });
    $("#accordion".accordion({
        collapsible:true,
        active:false,
        heightStyle:"content"
    });
    $("#menu-mobile img").click(function(){
        $('nav ul.menu').toggleClass("show");
    });
    $("#signup").click(function(){
        $(".members-form-wrapper#new-user").slideDown("slow");
    });
    $('#postcode').on('change',function(event){if(inputHasContent($(this))){
            $('.details').show();
        }else{
            $('.details').hide();
        }
    });
});

I’m trying desperately to minify the load time on my wordpress install and encountering errors when i try to improve.

Something just tells me, that this is something really simple… but I just can’t see it. Any help appreciated!